Feed-water purifier



(No Model.)

0. H. JEWELL.

PE ED WATER PURIFIER. No. 377,386. Patented Feb. '7, 1888.

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UNiTsn STATES nNT OMAR H. JElVELL, OF CHICAGO, ILLINOIS.

FEED-=WATER PURIFIER.

SPECIFICATION forming part of Letters Patent No. 377,386, dated February 7, 1888.

Application filed May 10, 1887.

To all whom it may concern:

Be it known that I, OMAR H. J EWELL, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Feed-lVater Purifiers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to devices for purifying feed-water for steam-boilers to prevent sediments and incrustations in such boilers; and it has for its object to provide an apparatus that by filtering and by the automatic admixture of chemicals will clarify the most impure water, and also in devices in connection therewith for washing out such apparatus from time to time for removing the impurities collected therein; and with the above objects in view my invention consists of the novel devices and combinations of devices hereinafter.

described and specifically claimed.

In the accompanying drawings, Figure 1 represents a sectional elevation of the entire apparatus, and Fig. 2 a section of the bottom of the filtering-tank on an enlarged scale.

Corresponding letters in the several figures of the drawings designate like parts.

A denotes the tank, being a cylindrical vessel made of sheet metal. Below the top of this vessel is secured abox, B, having a perforated bottom and communicating through a nozzle, 2), with a globe, 0, having to its top a safetyvalve, 0, of any usual construction. In its bottom the tank A communicates,through a short nozzle, d, with a cross-coupling, D, and above this nozzle d is secured, upon the bottom of said tank,a strainer, E, by circumferential vertical flanges that provide a sufficient chamber below such strainer for water filtering through to collect therein before flowing off through nozzle (Z. On top of this strainer E is placed a disk, F, having perforations much finer than those in strainer E, and this diskF is secured by a bolt, f, passed through a central hole of the disk and tapped into the central portion of strainer-plate E, and this boltf is sufficiently long for disk 13 to move up and down and to be guided thereon.

The tank A is to be filled with fine gravel and sand for the water to filter through.

G is the feed-pump, and g the suction-pipe Serial No. 237,703. (No model.)

thereof. This pump, through pipes h i, communicates with globe O, and, through pipes hj, with the crosscoupling D, whence a pipe, is, leads to the boilers, or to a tank from which the boilers are fed by means of an injector. Cross-coupling D also communicates, through a globe-valve, L, with a pipe, Z, that leads outdoors into the sewer or river. A globe-valve, I, is interposed in pipe '5, another globe-valve,

J, is interposed in pipe j, and a third globevalve, K, is interposed in pipe k. A pipe, M, leads from globe O to a T-coupling, m, interposed in pipe Z below globe-valve L, and this pipe M is provided with a globevalve, N.

For filtering water through tank A to be used as feed-water for the boilers, the valves J, L, and N are closed and the valves I and K are opened, when the water will be forced through pipes hi and through strainer B into the top of tank A, and will pass through the sand and gravel therein, where it will be separated from all impurities, and the clear water will then pass through strainers F and E and through pipe 7; into the boilers.

For washing out the tank A to remove the impurities collected therein from filtering, I close valves I, K, andL and open valves J and N,when the water from the pump will be'forced through pipes h j, thence upward through strainers EF, through the gravel and sand in the tank and through the strainer B, and will thence be discharged through pipes M and l; and while the course of the water is thus 1e 8 versed the perforated disk F will be lifted by the force thereof to allow a more free passage of the water and to remove any slimy impir rities that might have gathered between such plates, and at the same time with passing through the sand and gravel the water will whirl up the same, carrying with it all impurities collected therein. After the tank has thus been washed out by reversing the flow of the water passed through it, I again close 9 5 valves N J and open valves I L, for discharging through pipe 1 into the sewer the first water filtered through the tank again in a downward direction for carrying off such impurities that may have been retained in the bottom of the tank from the water forced upward therethrough for washing out, until the filtered water shows to be clear, when I close L and open valve K again. The perforated box B may'also be filled with gravel for retaining coarser matter that otherwise might clog up the perforations of such box.

To one side of pump G, Iplace'a hermetic chamber or vessel, 0, provided inside with a funnel, P, having a conical perforated bottom and being open on top, and from pipe h, I lead a small pipe, 19, into chamber 0, discharging through a small sprinkler into the top of such funnel P, and another small pipe, q, I lead from pipeg through the bottom of chamber 0,

- with its expanded end about vertically below the funnel P, andthe pipe 19, I provide with a valve, 1", and the pipe (1,1 provide with a valve, 8, both valves being I intended for stopping or regulating the flow of water through pipesp and q. Through a suitable valve or opening in chamber 0 the funnel P is filled with alum or other'chemieals having the property of eondensing and precipitating slimy impurities contained in the water, and then by opening the valves 1' and s the action of the pump will force water through pipe p to filter through the alum, dissolving it by degrees, and then the solution will be drawn by the suction of the pump through pipe q,- and will be intermixed with the water forced through the filtering-tank A.

Man or hand holes are provided in tank A for filling the same with gravel and sand and for emptying when necessary.

With an apparatus as the above described the most' impure river-water can be clarified to be applicable as feed-water for steamboilers and other purposes with the very best results. What I claim is- 1. In an apparatus for the purpose described, the tank A, provided with strainers B and E, the strainer B communicating with the pump through pipes h and t, and the strainer E with the boilers through pipe is, substantially as set forth.

2. In an apparatus for the purpose'de 'scribed, the tank A, with strainers B and E,

the strainer B communicating with the pump through pipes h z, and with the sewer through pipes M l, and strainer E communicating with the pump through pipes h j, andwith the boilers through pipe k, such pipes being provided with suitable valves for regulating and reversing the circulation of the water through such tank," substantially as set forth.

3. In an apparatus for the purpose described, the tank A, with strainers B and E, strainer B communicating with the pump through pipes h i, provided with valve I, and with the sewer through pipes M Z, provided with valves L N, and strainer E communicating with the pump through pipes h j, provided with valve J, and with the boilers through pipe It, provided with valve K, all substantially as set forth, for the purpose specified.

4. In an apparatus for the purpose described, the combination, with the filteringtank, of perforated plate E in the bottom thereof, and perforated disk F on top of plate 4 E, vertically movable and guided on bolt f, substantially as described, to operate as specified.

5. The combination, with the filtering-tank and the force-pump feeding the same, of chamher 0, with perforated funnel P, a pipe, 11, leading from the discharge-pipe of the pump into funnel P, and a pipe, q, leading from the bottom of chamber 0 into the suction -pipe of the pump, all substantially as and for the purpose set forth.

In testimony whereof I ailix my signature in presence of two witnesses.

OMAR H. JEWELL.

WVitnesses:

WILLIAM H. Lorz, Orro LUBKERT. 

